I believe it was because they owed money
The war started mainly because of four aspects Militarism Alliances Imperialism and Nationalism. This is because big armies become potential threats to other countries.
hope this helps
Answer:
Russia, France and Great Britain made up the triple entente
The answer would be youthful, because the WW1 had just happened so people adresses life with a very relaxed attitude because so many people had died they realised how short life is and became more promiscuous in their day to day activities